Physicists predict the universe’s expansion will reverse, ending in a dramatic big crunch about 20 billion years from now.

String theory is one of the most ambitious ideas in modern physics, aiming to unite all forces of nature into one framework.

Scientists are on the trail of a mysterious five-particle structure that could challenge one of the biggest theories in physics: string theory. This rare particle—never seen before and predicted not ...

String theory proposes tiny vibrating strings existing across 10 dimensions, unifying forces and particles beyond the ...

An illustration of two black holes about to merge and emitting copious gravitational waves. And as the numbers of gravitational-wave observations have increased, physicists’ careful modeling is ...

(via Sabine Hossenfelder) According to a growing body of data, dark energy is not constant. Instead, physicists claim, it’s slowly getting weaker. This has understandably shaken our understanding of ...

What if the universe remembers? A bold new framework proposes that spacetime acts as a quantum memory. For over a hundred ...

How exactly did the universe start and how did these processes determine its formation and evolution? This is what a study published in Physical Review Research hopes to address as a team of ...

When you buy through links on our articles, Future and its syndication partners may earn a commission. Conceptual illustration depicting matter transitioning from a black hole to a white hole. | ...